Results 41 to 50 of about 947 (159)

Kineochelins—A New Group of Siderophores From an Antarctic Bacterium

Microbial Biotechnology, Volume 19, Issue 6, June 2026.
Genome‐guided analysis of an Antarctic Actinokineospora strain led to the discovery of kineochelins, a new group of siderophores involved in iron sequestration and microbial competition. Kineochelin production inhibits co‐occurring bacteria and clinically relevant yeasts, highlighting Antarctic microorganisms as promising sources of bioactive natural ...
Stanislava Kralova, Peter Spacek, Johannes Gafriller, Matej Bezdicek, Viktoria Medvedcova, Joana Séneca, Jay Osvatic, Ulrike Grienke, Thomas Rattei, Olga N. Sekurova, Sergey B. Zotchev, Martin Zehl, Alexander Loy   +12 more
wiley   +1 more source

Trends in Veterinary Drug Residues in US Cattle: Analysing USDA Sampling Data

Veterinary Medicine and Science, Volume 12, Issue 3, May 2026.
National US residue monitoring data (2021–2023) were analysed to characterise veterinary drug residue detections in cattle. Detection patterns varied by cattle type, with dairy cows accounting for the highest number of detections and a consistent group of commonly used drugs responsible for most violative and non‐violative findings.
Abdullah S. Alwahaimed, Joseph Eifert
wiley   +1 more source

Structural Basis of Sequential Enantioselective Epoxidation by a Flavin‐Dependent Monooxygenase in Lasalocid A Biosynthesis

Angewandte Chemie, Volume 137, Issue 24, June 10, 2025.
Lsd18 is a flavin‐dependent monooxygenase from Streptomyces lasalocidi that performs two enantioselective epoxidations during lasalocid A biosynthesis. X‐ray crystal structures of Lsd18 bound to a substrate and product analogue illuminate how this enzyme performs multiple epoxidations on the same substrate molecule and how it controls stereoselectivity.
Qian Wang, Yaming Deng, Dayan Viera, Xiaopeng Liu, Ning Liu, Yulu Hu, Xiangdong Hu, Hao Wei, Quan Zhou, Ting Lan, Wei He, Xi Chen, Chu‐Young Kim   +12 more
wiley   +2 more sources

Assessment of the application for modification of the terms of the authorisation of the feed additive consisting of Bacillus velezensis ATCC PTA‐6737 (PB6) for all pigs, all poultry species for fattening or reared for laying/breeding, laying hens, minor poultry species for laying and ornamental birds (Kemin Europa N.V.)

EFSA Journal, Volume 24, Issue 5, May 2026.
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of the preparation consisting of viable spores of Bacillus velezensis ATCC PTA‐6737 (tradename PB6). PB6 is currently authorised for use as a zootechnical additive (functional group: gut flora stabilisers) for all poultry
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Katerina Theodoridou, Montserrat Anguita, Matteo L. Innocenti, Jaume Galobart, Rosella Brozzi   +19 more
wiley   +1 more source

Intoxicação por antibióticos ionóforos em animais Ionophore poisoning in animals

Pesquisa Veterinária Brasileira, 2009
O uso terapêutico de antibióticos ionóforos em medicina veterinária difundiu-se muito nos últimos anos, com conseqüente aumento no risco de intoxicação em animais.
Vivian Assunção Nogueira, Ticiana Nascimento França, Paulo Vargas Peixoto   +2 more
doaj   +1 more source

Copper(II), a Peculiar Metal Ion for Complexation With Monensin A Ionophore

Chemistry – A European Journal, Volume 32, Issue 14, 15 April 2026.
Copper(II) forms three chiral and EPR‐active complexes with monensinate A in methanol. Beside the bis [CuL2] and mono [CuL]+ species, the new dinuclear construct [Cu2L]3+ exhibits an [ML]+‐type and a metal salt‐type copper(II) centers weakly bound to each other through counter ion(s) and thus, being magnetically independent.
Máté Levente Kis, Bálint Hajdu, Tamás Jakusch, Zoltán Kele, Petar Dorkov, Rositsa Kukeva, Ivayla Pantcheva, Béla Gyurcsik   +7 more
wiley   +1 more source

Suplementação de bovinos em pastagens de Coastcross (Cynodon dactylon (L.) Pers) no inverno Cattle supplementation on Coastcross pasture (Cynodon dactylon (L.) Pers) during the winter

Revista Brasileira de Zootecnia, 2004
O experimento foi realizado no município de Luiziana, noroeste do Estado do Paraná, no período de junho a outubro de 2000. Foram utilizados 24 novilhos inteiros, com nove meses de idade e peso inicial médio de 223 kg, pertencentes a dois grupos genéticos
Paulo Emílio Fernandes Prohmann, Antonio Ferriani Branco, Ulysses Cecato, Clóves Cabreira Jobim, Kátia Cylene Guimarães, Rosemeri Aparecida Ferreira   +5 more
doaj   +1 more source

Assessment of the application for modification of the terms of the authorisation of the feed additive consisting of Bacillus subtilis DSM 32324, Bacillus subtilis DSM 32325 and Bacillus amyloliquefaciens DSM 25840 (GalliPro® Fit) for all poultry species for fattening and reared for laying/breeding (Chr. Hansen A/S)

EFSA Journal, 2023
Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of Bacillus subtilis DSM 32324, Bacillus subtilis DSM 32325 and Bacillus amyloliquefaciens DSM 25840 (GalliPro® Fit) as a ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Vasileios Bampidis, Giovanna Azimonti, Maria deLourdes Bastos, Henrik Christensen, Birgit Dusemund, Mojca Durjava, Maryline Kouba, Marta López‐Alonso, Secundino López Puente, Francesca Marcon, Baltasar Mayo, Alena Pechová, Mariana Petkova, Fernando Ramos, Yolanda Sanz, Roberto Edoardo Villa, Ruud Woutersen, Miguel Prieto Maradona, Montserrat Anguita, Jaume Galobart, Elisa Pettenati, Rosella Brozzi, Natalia Alija Novo   +23 more
doaj   +1 more source

Heterocyclic‐Fused Squaramides: Anionophores With Antimicrobial Activity

ChemBioChem, Volume 27, Issue 5, 13 March 2026.
Supramolecular medicinal chemistry has allowed for the development of novel drugs for the treatment of cystic fibrosis, and in the fight against cancer. However, little has been done to develop these as antimicrobial agents. Here, we describe the development of novel chemical tools to further develop supramolecular methods to combat the global plight ...
Luke Edward Brennan, Chris Samuel Hawes, Kevin Kavanagh, Robert Brian Peter Elmes   +3 more
wiley   +1 more source

Efeito dos ionóforos e do balanço eletrolítico da dieta sobre o desempenho e a incidência de discondroplasia tibial em frangos de corte na fase inicial Effect of ionophores and acid-base balance on performance and incidence of tibial dyschondroplasia in 21-d old broiler chicks

Revista Brasileira de Zootecnia, 2004
O objetivo do trabalho foi avaliar o efeito dos ionóforos e balanços eletrolíticos da dieta (BED) no desempenho e na incidência de discondroplasia tibial (DT) em frangos de corte de 1 a 21 dias de idade.
José Rodrigo Galli Franco, Alice Eiko Murakami, Márcia Izumi Sakamoto, Elias Nunes Martins, Ivan Moreira, Marli Aparecida dos Santos Pereira   +5 more
doaj   +1 more source